The following Mark's Daily Apple article was written by Mark Sisson,

and is narrated by Tina Lehman.

Should you be getting more B vitamins?

When it comes to obtaining sufficient amounts of certain micronutrients, you're hypervigilant.

Magnesium, you're eating spinach, throwing back magnesium glycinate,

and adding trace mineral drops to your water.

Iodine, you're making dulce bacon.

To bask in the holy triumvirate of vitamin K, vitamin D3, and vitamin A,

you're willing to eat fermented cod liver oil and stinky natto.

But as omnivores drawing upon a broad spectrum of plant and animal foods,

primal people tend to assume they have the B vitamins covered.

It's no wonder, punch a slab of

beef chuck steak or a few ounces of liver into the USDA nutrient database, and that whole B vitamin

section seems to fill up. Let's take a look. You may be right. You may be totally fine. But it's

always nice to refresh your focus.

Vitamin B1, thiamine.

Thyamine is a co-enzyme used to produce ATP, the energy currency of the body.

Without adequate thiamine, your power levels drop.

Wouldn't want to be low energy, would you?

Deficiency symptoms. 1. Serious thiamine deficiency leads to an often fatal condition that affects the cardiovascular system called berry berry.

This is hard to get in developed countries or any country that fortifies its grains.

Dry berry berry is another serious condition that affects the nervous system.

...